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| Description: Glutamate, tyrosine, glycine, and tryptophan serve as neurotransmitters or precursors to neurotransmitters. The pathway to serotonin begins with hydroxylation of tryptophan by a tetrahydrobiopterin-dependent aromatic amino acid hydroxylase, similar to phenylalanine hydroxylase. Picture Stats: Views: 284 Filesize: 57.17kB Height: 189 Width: 1104 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34798 |